Sports medicine has always been difficult to define because it is not a single specialty, but an area that involves health care professionals, researchers and educators from a wide variety of disciplines. Its function is not only curative and rehabilitative, but especially preventive.
Here are some general rules for injury prevention no matter what sport you play. While it is impossible to prevent every injury, research suggests that injury rates could be reduced by 25% if athletes took appropriate preventative action.

Be in proper physical condition to play a sport
Keep in mind the weekend warrior has a high rate of injury. If you play any sports, you should adequately train for that sport. It is a mistake to expect the sport itself to get you into shape. Many injuries can be prevented by following a regular conditioning program of exercises designed specifically for your sport. (See sports conditioning)

Know and abide by the rules of the sport
The rules are designed, in part, to keep things safe.
This is extremely important for anyone who participates in a contact sport. Rules of conduct, including illegal blocks and tackles are enforced to keep athletes healthy. Know them. Follow them.

Wear appropriate protective gear and equipment
Protective pads, mouth guards, helmets, gloves and other equipment is not for sissies. Protective equipment that fits you well can safe your knees, hands, teeth, eyes, and head. Never play without your safety gear.

Rest
Athletes with high consecutive days of training, have more injuries. While many athletes think the more they train, the better they'll play, this is a misconception. Rest is a critical component of proper training. Rest can make you stronger and prevent injuries of overuse, fatigue and poor judgement.

Always warm up before playing
Warm muscles are less susceptible to injuries. The proper warm up is essential for injury prevention. Make sure your warm up suits your sport. You may simply start your sport slowly, or practice specific stretching to muscles with known tightness.

Avoid playing when very tired or in pain
This is a set-up for a careless injury. Pain indicates a problem. You need to pay attention to warning signs your body provides.
Research provides us with helpful clues about the cause of sports injury. There are two factors that outweigh the rest when it comes to predicting a sports injury. They are:

• Having a history of injury. Previous injuries to a muscle, or joint tend to develop into chronic problem areas for many athletes. It is extremely important to warm up, and stretch previously injured parts.
• A high number of consecutive days of training. Recovery days reduce injury rates by giving muscles and connective tissues an opportunity to repair between training sessions